Seán studied renewable energy and energy management at the Munster Technological University and from this he went on to work for HEVAC as a technical sales advisor. From HEVAC he moved to their sister company Heat Merchants where he worked as part of their technical team and advised domestic and commercial clients. He then moved to Lindab and ran their technical department for 3 years before he moved to a subcontractor. Finally, he ended up with Frontline Energy as a building services engineer before being promoted to head of sales and engineering.